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Anker Astro Mini Black 3000 mAh External Battery 79AN3K-DA

  • For most Smartphones and other USB-charged devices
  • Output: 5V 1A
  • Input: 5V 0.8A
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Learn more about the Anker 79AN3K-DA


Astro Mini
Portable Battery


Compatible Phone Manufacturer
Compatible Phone Model
For most Smartphones and other USB-charged devices


3000 mAh
Output: 5V 1A

Input: 5V 0.8A


Add more than a full charge or 9 hours of additional talk time to your iPhone 5 / 4 / 4S / 3G / 3GS. On most other phones, benefit from 1 full charge or 90+ hours of audio playback.

Stylish, compact, lightweight design (3.5 x 0.9 x 0.9in, 2.7oz) fits easily into any pocket or bag.

Shaped to resemble a flashlight or tube of lipstick to provide durable and inconspicuous power at any moment's notice.

Constructed using Samsung Grade A cells and premium microchips to ensure the highest quality. Charge time: 3-4 hours via AC 0.8A adapter (not included).

Package contents: Anker Astro Mini 3000mAh External Battery, Micro USB power wire, travel pouch, instruction manual.


3.5" x 0.9" x 0.9"
2.8 oz.

Quick Info


  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year

Customer Reviews of the Anker 79AN3K-DA

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  • Dwayne M.
  • 7/8/2014 6:14:41 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsBest back-up battery I've ever had

Pros: Gives my phone a full charge and sometimes has a little bit left for another phone. Small and not too heavy (but a little heavier than other ones I have that don't work as good). I've probably used it 20-30 times now, still works good. Comes with a decent Micro USB cable.

Cons: It does get warm-hot when in use. Has an on button to charge phone, which you might forget to press (I've had other ones that stared to charge as soon as you plug in phone). When it's low on power, it still says it's charging the phone but it don't really appear to be.

Other Thoughts: Has become my go to backup battery charger, hardly use other ones I have. about the thickness of a tube of lipstick, but longer. Takes about an hour or so to charge phone to full.

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  • Anonymous
  • 3/27/2014 12:33:25 PM
  • Tech Level: Average
  • Ownership: 1 day to 1 week
  • Verified Owner

1 out of 5 eggsVery disappointed

Pros: Small and easy to carry

Cons: I used this as a backup for my phone. It gets hot when charging my phone. And I have only had to use it about 5 times, the unit says it is full after only a few minutes of charging, but when I plug my phone into it it never charges. I have tried it with several devices, several cables and different chargers with no success. Another annoying thing is that it took a whopping 7 HOURS TO RECHARGE. Very disappointed and wish I didn't buy.

0 out of 1 people found this review helpful. Did you? Yes No

  • Joseph P.
  • 3/10/2014 12:41:36 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsGreat Portable Charger

Pros: Small and compact size. small enough to fit in your pocket for travel or just to use around the house, car, work or anywhere. Great Pricing for a portable charger. Instant additional power for when you need it. Available in multiple colors

Cons: none

2 out of 2 people found this review helpful. Did you? Yes No

  • Austin V.
  • 3/9/2014 8:15:44 AM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsExtremely convenient product!

Pros: -Holds what should be ~1.2 iPhone charges in an incredibly small form factor.
-Build quality seems incredibly sturdy. Aluminum shell and no loose or wobbly parts.
-Micro USB charging port. No need to look for some weird adapter to charge your power bank.
-Standard USB output. Can charge any phone/tablet that uses USB.

Cons: -No sort of way of knowing exactly how much juice is left in it, as there is only one LED. So unless you charge it all the way and remember every time you use it, it will be hard to tell exactly how much power is in it.

Other Thoughts: Great product. Anyone who has a problem with their phone dying should have one.

3 out of 3 people found this review helpful. Did you? Yes No

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